A moisture absorption system and method for a scraper powder conveyor

Abstract

The present invention discloses a moisture absorption system for a scraper powder conveyor, comprising: a moisture absorption module, which is an exhaust fan for discharging water vapor in the scraper powder conveyor; a collection module for obtaining real-time information data in the scraper powder conveyor; a processing module for receiving the real-time information data obtained by the collection module, determining the actual water content of the air in the scraper powder conveyor according to the relative humidity value and the temperature value, and determining the operating parameters of the exhaust fan according to the actual water content and setting a working state instruction for the exhaust fan; and a control module for receiving the working state instruction of the exhaust fan set by the processing module and controlling the exhaust fan according to the working state instruction. By setting the working state instruction of the exhaust fan according to the real-time information data in the scraper powder conveyor and performing intelligent control, moisture absorption in the scraper powder conveyor is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal power generation equipment, and particularly relates to a moisture absorption system and method for a scraper coal powder conveyor. Background Art

[0002] In a medium storage pulverized coal system, before the pulverized coal enters the coal powder bin, the scraper coal powder conveyor is used to transport the pulverized coal to the designated coal powder bin position. At this time, in order to prevent the pulverized coal from getting damp and caking, moisture absorption pipes are arranged from the scraper coal powder conveyor and the coal powder bin to the inlet of the fine powder separator. Its function is to draw the water vapor in the scraper coal powder conveyor and the coal powder bin by means of the negative pressure at the inlet of the fine powder separator, prevent the pulverized coal from getting damp and caking, and prevent blockage or "jamming" phenomena. In addition, it can also keep a certain negative pressure in the coal powder conveyor and the coal powder bin to prevent the pulverized coal from spraying out from the leaky parts. When the scraper coal powder conveyor is running normally, the moisture absorption pipe works obviously. However, when it is in long-term standby, the moisture absorption pipe is easy to be blocked, resulting in caking of the pulverized coal, and the scraper coal powder conveyor cannot run normally when it is restarted after standby. This makes the subsequent operation and processing difficult and brings inconvenience to the daily work of the enterprise. Summary of the Invention

[0003] The purpose of the present invention is to provide a moisture absorption system for a scraper coal powder conveyor to solve the problem that when the scraper coal powder conveyor is in long-term standby, the moisture absorption pipe is easy to be blocked, resulting in caking of the pulverized coal and inability to run normally when restarted.

[0004] The present invention provides a moisture absorption system for a scraper coal powder conveyor, including:

[0005] A moisture absorption module, the moisture absorption module is an exhaust fan for exhausting the water vapor in the scraper coal powder conveyor;

[0006] A collection module, the collection module is used to obtain real-time information data in the scraper coal powder conveyor, and the real-time information data includes the relative humidity value and the temperature value in the scraper coal powder conveyor;

[0007] A processing module, the processing module is used to receive the real-time information data obtained by the collection module, determine the actual water content of the air in the scraper coal powder conveyor according to the relative humidity value and the temperature value, and determine the operating parameters of the exhaust fan according to the actual water content, and set the working state instruction of the exhaust fan;

[0008] A control module, the control module is used to receive the working state instruction of the exhaust fan set by the processing module and control the exhaust fan according to the working state instruction.

[0009] In some embodiments of the present application, the collection module includes a humidity sensor and a temperature sensor.

[0010] In some embodiments of the present application, a humidity matrix H0 and a water content matrix W0 are preset in the processing module. For the humidity matrix H0, H0(H1, H2, H3, H4) is set, where H1 is the first preset humidity, H2 is the second preset humidity, H3 is the third preset humidity, H4 is the fourth preset humidity, and H1 < H2 < H3 < H4;

[0011] For the water content matrix W0, W0(W1, W2, W3, W4) is set, where W1 is the first preset water content, W2 is the second preset water content, W3 is the third preset water content, W4 is the fourth preset water content, and W1 < W2 < W3 < W4;

[0012] Obtain the relative humidity value h detected by the humidity sensor, and set the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity;

[0013] When h < H1, set the first preset water content W1 as the water content of the air in the scraper powder conveyor;

[0014] When H1 ≤ h < H2, set the second preset water content W2 as the water content of the air in the scraper powder conveyor;

[0015] When H2 ≤ h < H3, set the third preset water content W3 as the water content of the air in the scraper powder conveyor;

[0016] When H3 ≤ h < H4, set the fourth preset water content W4 as the water content of the air in the scraper powder conveyor.

[0017] In some embodiments of the present application, a temperature matrix T0 and a water content correction matrix d0 are preset in the processing module. For the temperature matrix T0, T0(T1, T2, T3, T4) is set, where T1 is the first preset temperature, T2 is the second preset temperature, T3 is the third preset temperature, T4 is the fourth preset temperature, and T1 < T2 < T3 < T4;

[0018] For the water content correction matrix d0, d0(d1, d2, d3, d4) is set, where d1 is the first preset water content correction coefficient, d2 is the second preset water content correction coefficient, d3 is the third preset water content correction coefficient, d4 is the fourth preset water content correction coefficient, and 0.6 < d1 < d2 < d3 < d4 < 1;

[0019] After obtaining the relative humidity value h detected by the humidity sensor and setting the i-th preset water content Wi as the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity, at this time i = 1, 2, 3, 4;

[0020] Obtain the temperature value T around the humidity sensor, and select the corresponding water content correction coefficient according to the relationship between the temperature value T and each preset temperature to correct the water content Wi of the air in the scraper powder conveyor;

[0021] When T < T1, select the first preset water content correction coefficient d1 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction, it is Wi * d1;

[0022] When T1 ≤ T < T2, select the second preset water content correction coefficient d2 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction, it is Wi * d2;

[0023] When T2 ≤ T < T3, select the third preset water content correction coefficient d3 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction, it is Wi * d3;

[0024] When T3 ≤ T < T4, select the fourth preset water content correction coefficient d4 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction, it is Wi * d4.

[0025] In some embodiments of the present application, the processing module determines the actual water content of the air in the scraper powder conveyor according to the relative humidity value and the temperature value, specifically:

[0026] After setting the i-th preset water content Wi as the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity, at this time, i = 1, 2, 3, 4;

[0027] Select the j-th preset water content correction coefficient dj according to the relationship between the temperature value T and each preset temperature to correct the water content Wi of the air in the scraper powder conveyor, and after correction, it is Wi * dj. At this time, j = 1, 2, 3, 4;

[0028] Set the corrected Wi * dj as the actual water content of the air in the scraper powder conveyor;

[0029] The processing module pre-sets an actual water content matrix C0 of the air in the scraper powder conveyor, a rotation speed matrix R0 of the exhaust fan, and an operation duration matrix S0. For the actual water content matrix C0, set C0 (C1, C2, C3, C4), where C1 is the first preset actual water content, C2 is the second preset actual water content, C3 is the third preset actual water content, C4 is the fourth preset actual water content, and C1 < C2 < C3 < C4;

[0030] For the rotation speed matrix R0, set R0(R1, R2, R3, R4), where R1 is the first preset rotation speed, R2 is the second preset rotation speed, R3 is the third preset rotation speed, R4 is the fourth preset rotation speed, and R1 < R2 < R3 < R4;

[0031] For the operation duration matrix S0, set S0(S1, S2, S3, S4), where S1 is the first preset operation duration, S2 is the second preset operation duration, S3 is the third preset operation duration, S4 is the fourth preset operation duration, and S1 < S2 < S3 < S4;

[0032] Obtain the actual water content Wi*dj of the air in the scraper powder conveyor, and set the operation parameters of the exhaust fan according to the relationship between the actual water content Wi*dj and each preset actual water content; the operation parameters of the exhaust fan include the rotation speed and operation duration of the exhaust fan;

[0033] When Wi*dj < C1, set the first preset rotation speed R1 as the rotation speed of the exhaust fan, and set the first preset operation duration S1 as the operation duration of the exhaust fan;

[0034] When C1 ≤ Wi*dj < C2, set the second preset rotation speed R2 as the rotation speed of the exhaust fan, and set the second preset operation duration S2 as the operation duration of the exhaust fan;

[0035] When C2 ≤ Wi*dj < C3, set the third preset rotation speed R3 as the rotation speed of the exhaust fan, and set the third preset operation duration S3 as the operation duration of the exhaust fan;

[0036] When C3 ≤ Wi*dj < C4, set the fourth preset rotation speed R4 as the rotation speed of the exhaust fan, and set the fourth preset operation duration S4 as the operation duration of the exhaust fan.

[0037] In some embodiments of the present application, the acquisition module further includes a barometer for obtaining the negative pressure value in the scraper powder conveyor;

[0038] The processing module receives the negative pressure value in the scraper powder conveyor obtained by the acquisition module, based on the negative pressure value, obtains the negative pressure difference between the negative pressure value and the target negative pressure value, and adjusts the operation parameters of the exhaust fan according to the negative pressure difference.

[0039] In some embodiments of the present application, a negative pressure difference matrix P0 and a exhaust fan correction matrix f0 are preset in the processing module. For the negative pressure difference matrix P0, P0(P1, P2, P3, P4) is set, where P1 is the first preset negative pressure difference, P2 is the second preset negative pressure difference, P3 is the third preset negative pressure difference, P4 is the fourth preset negative pressure difference, and P1 < P2 < P3 < P4;

[0040] For the exhaust fan correction matrix f0, f0(f1, f2, f3, f4) is set, where f1 is the first preset exhaust fan correction coefficient, f2 is the second preset exhaust fan correction coefficient, f3 is the third preset exhaust fan correction coefficient, f4 is the fourth preset exhaust fan correction coefficient, and 0.6 < f1 < f2 < f3 < f4 < 1;

[0041] According to the relationship between the actual moisture content Wi*dj and each preset actual moisture content, the k-th preset rotation speed Rk is set as the rotation speed of the exhaust fan. After setting the k-th preset operation duration Sk as the operation duration of the exhaust fan, k = 1, 2, 3, 4;

[0042] Obtain the negative pressure value inside the scraper powder conveyor, calculate the negative pressure difference P between the negative pressure value and the target negative pressure value, and select the corresponding correction coefficient according to the relationship between the negative pressure difference P and each preset negative pressure difference to correct the rotation speed Rk and the operation duration Sk of the exhaust fan;

[0043] When P < P1, select the first preset exhaust fan correction coefficient f1 to correct the rotation speed and the operation duration of the exhaust fan. The corrected rotation speed of the exhaust fan is Rk*f1, and the corrected operation duration of the exhaust fan is Sk*f1;

[0044] When P1 ≤ P < P2, select the second preset exhaust fan correction coefficient f2 to correct the rotation speed and the operation duration of the exhaust fan. The corrected rotation speed of the exhaust fan is Rk*f2, and the corrected operation duration of the exhaust fan is Sk*f2;

[0045] When P2 ≤ P < P3, select the third preset exhaust fan correction coefficient f3 to correct the rotation speed and the operation duration of the exhaust fan. The corrected rotation speed of the exhaust fan is Rk*f3, and the corrected operation duration of the exhaust fan is Sk*f3;

[0046] When P3 ≤ P < P4, select the fourth preset exhaust fan correction coefficient f4 to correct the rotation speed and the operation duration of the exhaust fan. The corrected rotation speed of the exhaust fan is Rk*f4, and the corrected operation duration of the exhaust fan is Sk*f4.

[0047] A method for dehumidifying a scraper powder conveyor, comprising:

[0048] Obtain the real-time information data inside the scraper powder conveyor, and transmit the obtained real-time information data to the processing module for processing. The real-time information data includes the relative humidity value and temperature value inside the scraper powder conveyor;

[0049] Determine the actual water content of the air inside the scraper powder conveyor according to the relative humidity value and temperature value, and determine the operating parameters of the exhaust fan according to the actual water content, and set the working state instruction of the exhaust fan. The operating parameters of the exhaust fan include the rotation speed and operating duration of the exhaust fan;

[0050] Control the exhaust fan according to the working state instruction set by the processing module to achieve moisture absorption of the scraper powder conveyor.

[0051] In some embodiments of the present application, the real-time information data further includes the negative pressure value inside the scraper powder conveyor;

[0052] After determining the operating parameters of the exhaust fan according to the actual water content, it further includes:

[0053] Based on the negative pressure value, obtain the negative pressure difference between the negative pressure value and the target negative pressure value, and adjust the operating parameters of the exhaust fan according to the negative pressure difference.

[0054] The present invention discloses a moisture absorption system and method for a scraper powder conveyor. By obtaining the relative humidity value and temperature value inside the scraper powder conveyor, the actual water content inside the scraper powder conveyor is determined, and the operating parameters of the exhaust fan are determined according to the actual water content, so that the scraper powder conveyor remains dry during idle standby, preventing it from getting damp and caking. At the same time, by adjusting the operating parameters of the exhaust fan according to the negative pressure value inside the scraper powder conveyor, a certain negative pressure is maintained inside the scraper powder conveyor, preventing powder spraying out from the non-tight places.

[0055] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail. Brief Description of the Drawings

[0056] Figure 1 It is a schematic structural diagram of a moisture absorption system for a scraper powder conveyor according to the present invention;

[0057] Figure 2 It is a flowchart of a moisture absorption method for a scraper powder conveyor according to the present invention. Detailed Embodiments

[0058] The following further illustrates the technical solutions of the present invention through the drawings and embodiments.

[0059] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further explanations of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same general meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0060] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof, without excluding other elements or objects. The "first", "second", and similar terms used in the present invention do not denote any order, quantity, or importance, but are only used to distinguish different components. Terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only relationship terms determined for the convenience of describing the structural relationship of each component or element of the present invention, and do not specifically refer to any component or element in the invention, and should not be construed as a limitation of the invention. Terms such as "fixed connection", "connected", "connected" should be understood in a broad sense, which may mean a fixed connection, an integral connection or a detachable connection; it may be directly connected or indirectly connected through an intermediate medium. For those related scientific research or technical personnel in the field, the specific meanings of the above terms in the present invention can be determined according to specific circumstances, and should not be construed as a limitation of the present invention.

[0061] Embodiment

[0062] In the medium storage pulverized coal system, before the pulverized coal enters the coal bunker, the scraper coal conveyor is used to convey the pulverized coal to the designated coal bunker position. At this time, in order to prevent the pulverized coal from getting damp and caking, moisture absorption pipes are arranged from the scraper coal conveyor and the coal bunker to the inlet of the fine powder separator. Its function is to draw the water vapor in the scraper coal conveyor and the coal bunker by the negative pressure at the inlet of the fine powder separator, prevent the pulverized coal from getting damp and caking, and prevent blockage or "jamming" phenomena. In addition, a certain negative pressure can also be maintained in the coal conveyor and the coal powder bunker to prevent the powder from spraying out from the non-tight places. When the scraper coal conveyor is running normally, the moisture absorption pipe has an obvious effect, but when it is in long-term standby, the moisture absorption pipe is easily blocked, resulting in caking of the pulverized coal, and the scraper coal conveyor cannot run normally when it is restarted after standby.

[0063] To solve the above problems, the present invention provides a moisture absorption system for a scraper coal conveyor, as Figure 1 shown, including:

[0064] A moisture absorption module, the moisture absorption module is an exhaust fan for exhausting the water vapor in the scraper coal conveyor;

[0065] A collection module, the collection module is used to obtain the real-time information data in the scraper coal conveyor, and the real-time information data includes the relative humidity value and the temperature value in the scraper coal conveyor;

[0066] A processing module, which is configured to receive the real-time information data acquired by the acquisition module, determine the actual water content of the air in the scraper powder conveyor according to the relative humidity value and the temperature value, and determine the operating parameters of the exhaust fan according to the actual water content, and set the working state instruction of the exhaust fan.

[0067] A control module, which is configured to receive the working state instruction of the exhaust fan set by the processing module and control the exhaust fan according to the working state instruction.

[0068] In this embodiment, the exhaust fan is installed above the scraper powder conveyor to facilitate the exhaust fan to discharge the water vapor in the scraper powder conveyor.

[0069] In some embodiments of the present application, the acquisition module includes a humidity sensor and a temperature sensor.

[0070] In this embodiment, the humidity sensor and the temperature sensor are installed above the inside of the scraper powder conveyor. The humidity sensor is used to detect the relative humidity in the scraper powder conveyor, and the temperature sensor is used to detect the temperature around the humidity sensor.

[0071] In some embodiments of the present application, a humidity matrix H0 and a water content matrix W0 are preset in the processing module. For the humidity matrix H0, H0(H1, H2, H3, H4) is set, where H1 is the first preset humidity, H2 is the second preset humidity, H3 is the third preset humidity, H4 is the fourth preset humidity, and H1 < H2 < H3 < H4;

[0072] For the water content matrix W0, W0(W1, W2, W3, W4) is set, where W1 is the first preset water content, W2 is the second preset water content, W3 is the third preset water content, W4 is the fourth preset water content, and W1 < W2 < W3 < W4;

[0073] Obtain the relative humidity value h detected by the humidity sensor, and set the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity;

[0074] When h < H1, set the first preset water content W1 as the water content of the air in the scraper powder conveyor;

[0075] When H1 ≤ h < H2, set the second preset water content W2 as the water content of the air in the scraper powder conveyor;

[0076] When H2 ≤ h < H3, set the third preset water content W3 as the water content of the air in the scraper powder conveyor;

[0077] When H3 ≤ h < H4, set the fourth preset water content W4 as the water content of the air in the scraper powder conveyor.

[0078] In some embodiments of the present application, a temperature matrix T0 and a water content correction matrix d0 are preset in the processing module. For the temperature matrix T0, set T0 (T1, T2, T3, T4), where T1 is the first preset temperature, T2 is the second preset temperature, T3 is the third preset temperature, and T4 is the fourth preset temperature, and T1 < T2 < T3 < T4;

[0079] For the water content correction matrix d0, set d0 (d1, d2, d3, d4), where d1 is the first preset water content correction coefficient, d2 is the second preset water content correction coefficient, d3 is the third preset water content correction coefficient, and d4 is the fourth preset water content correction coefficient, and 0.6 < d1 < d2 < d3 < d4 < 1;

[0080] After obtaining the relative humidity value h detected by the humidity sensor and setting the i-th preset water content Wi as the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity, at this time i = 1, 2, 3, 4;

[0081] Obtain the temperature value T around the humidity sensor, and select the corresponding water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor according to the relationship between the temperature value T and each preset temperature;

[0082] When T < T1, select the first preset water content correction coefficient d1 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction, it is Wi * d1;

[0083] When T1 ≤ T < T2, select the second preset water content correction coefficient d2 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction, it is Wi * d2;

[0084] When T2 ≤ T < T3, select the third preset water content correction coefficient d3 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction, it is Wi * d3;

[0085] When T3 ≤ T < T4, select the fourth preset water content correction coefficient d4 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction, it is Wi * d4.

[0086] In this embodiment, the relative humidity refers to the water vapor content in the atmosphere, which can be expressed as the percentage of the maximum water vapor that the air can contain. This content varies with temperature. Warm air can contain more water vapor, while cold air contains less.

[0087] In some embodiments of the present application, the processing module determines the actual water content of the air in the scraper powder conveyor according to the relative humidity value and the temperature value. Specifically:

[0088] After setting the i-th preset water content Wi as the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity, where i = 1, 2, 3, 4 at this time;

[0089] Select the j-th preset water content correction coefficient dj according to the relationship between the temperature value T and each preset temperature to correct the water content Wi of the air in the scraper powder conveyor. After correction, it is Wi*dj. At this time, j = 1, 2, 3, 4;

[0090] Set the corrected Wi*dj as the actual water content of the air in the scraper powder conveyor.

[0091] In some embodiments of the present application, the processing module pre-sets an actual water content matrix C0 of the air in the scraper powder conveyor, a rotation speed matrix R0 of the exhaust fan, and an operation duration matrix S0. For the actual water content matrix C0, set C0 (C1, C2, C3, C4), where C1 is the first preset actual water content, C2 is the second preset actual water content, C3 is the third preset actual water content, C4 is the fourth preset actual water content, and C1 < C2 < C3 < C4;

[0092] For the rotation speed matrix R0, set R0 (R1, R2, R3, R4), where R1 is the first preset rotation speed, R2 is the second preset rotation speed, R3 is the third preset rotation speed, R4 is the fourth preset rotation speed, and R1 < R2 < R3 < R4;

[0093] For the operation duration matrix S0, set S0 (S1, S2, S3, S4), where S1 is the first preset operation duration, S2 is the second preset operation duration, S3 is the third preset operation duration, S4 is the fourth preset operation duration, and S1 < S2 < S3 < S4;

[0094] Obtain the actual water content Wi*dj of the air in the scraper powder conveyor, and set the operation parameters of the exhaust fan according to the relationship between the actual water content Wi*dj and each preset actual water content; the operation parameters of the exhaust fan include the rotation speed and the operation duration of the exhaust fan;

[0095] When Wi*dj < C1, set the first preset rotational speed R1 as the rotational speed of the exhaust fan, and set the first preset operation duration S1 as the operation duration of the exhaust fan;

[0096] When C1 ≤ Wi*dj < C2, set the second preset rotational speed R2 as the rotational speed of the exhaust fan, and set the second preset operation duration S2 as the operation duration of the exhaust fan;

[0097] When C2 ≤ Wi*dj < C3, set the third preset rotational speed R3 as the rotational speed of the exhaust fan, and set the third preset operation duration S3 as the operation duration of the exhaust fan;

[0098] When C3 ≤ Wi*dj < C4, set the fourth preset rotational speed R4 as the rotational speed of the exhaust fan, and set the fourth preset operation duration S4 as the operation duration of the exhaust fan.

[0099] In some embodiments of the present application, the acquisition module further includes a barometer for obtaining the negative pressure value inside the scraper powder conveyor;

[0100] The processing module receives the negative pressure value inside the scraper powder conveyor obtained by the acquisition module, and based on the negative pressure value, obtains the negative pressure difference between the negative pressure value and the target negative pressure value, and adjusts the operation parameters of the exhaust fan according to the negative pressure difference.

[0101] In some embodiments of the present application, a negative pressure difference matrix P0 and an exhaust fan correction matrix f0 are preset in the processing module. For the negative pressure difference matrix P0, set P0(P1, P2, P3, P4), where P1 is the first preset negative pressure difference, P2 is the second preset negative pressure difference, P3 is the third preset negative pressure difference, P4 is the fourth preset negative pressure difference, and P1 < P2 < P3 < P4;

[0102] For the exhaust fan correction matrix f0, set f0(f1, f2, f3, f4), where f1 is the first preset exhaust fan correction coefficient, f2 is the second preset exhaust fan correction coefficient, f3 is the third preset exhaust fan correction coefficient, f4 is the fourth preset exhaust fan correction coefficient, and 0.6 < f1 < f2 < f3 < f4 < 1;

[0103] After setting the k-th preset rotational speed Rk as the rotational speed of the exhaust fan and the k-th preset operation duration Sk as the operation duration of the exhaust fan according to the relationship between the actual moisture content Wi*dj and each preset actual moisture content, k = 1, 2, 3, 4;

[0104] Obtain the negative pressure value inside the scraper powder conveyor, calculate the negative pressure difference P between the obtained negative pressure value and the target negative pressure value, and select the corresponding correction coefficient according to the relationship between the negative pressure difference P and each preset negative pressure difference to correct the rotational speed Rk and the operating duration Sk of the exhaust fan;

[0105] When P < P1, select the first preset exhaust fan correction coefficient f1 to correct the rotational speed and the operating duration of the exhaust fan. The corrected rotational speed of the exhaust fan is Rk * f1, and the corrected operating duration of the exhaust fan is Sk * f1;

[0106] When P1 ≤ P < P2, select the second preset exhaust fan correction coefficient f2 to correct the rotational speed and the operating duration of the exhaust fan. The corrected rotational speed of the exhaust fan is Rk * f2, and the corrected operating duration of the exhaust fan is Sk * f2;

[0107] When P2 ≤ P < P3, select the third preset exhaust fan correction coefficient f3 to correct the rotational speed and the operating duration of the exhaust fan. The corrected rotational speed of the exhaust fan is Rk * f3, and the corrected operating duration of the exhaust fan is Sk * f3;

[0108] When P3 ≤ P < P4, select the fourth preset exhaust fan correction coefficient f4 to correct the rotational speed and the operating duration of the exhaust fan. The corrected rotational speed of the exhaust fan is Rk * f4, and the corrected operating duration of the exhaust fan is Sk * f4.

[0109] In this embodiment, when dehumidifying the scraper powder conveyor through the exhaust fan, it is also necessary to consider the negative pressure value inside the scraper powder conveyor, and adjust the exhaust fan based on the negative pressure difference between the negative pressure value and the target negative pressure value, ensuring that a certain negative pressure is maintained inside the scraper powder conveyor to prevent powder spraying out from the unsealed parts.

[0110] A method for dehumidifying a scraper powder conveyor, as Figure 2 shown, includes:

[0111] S1. Obtain the real-time information data inside the scraper powder conveyor, and transmit the obtained real-time information data to the processing module for processing. The real-time information data includes the relative humidity value and the temperature value inside the scraper powder conveyor;

[0112] S2. Determine the actual water content of the air inside the scraper powder conveyor according to the relative humidity value and the temperature value, determine the operating parameters of the exhaust fan according to the actual water content, and set the working state instruction of the exhaust fan. The operating parameters of the exhaust fan include the rotational speed and the operating duration of the exhaust fan;

[0113] S3. Control the exhaust fan according to the working state instruction set by the processing module to achieve dehumidification of the scraper powder conveyor.

[0114] In some embodiments of the present application, the real-time information data further includes the negative pressure value in the scraper powder conveyor;

[0115] After determining the operating parameters of the exhaust fan according to the actual water content, it further includes:

[0116] Based on the negative pressure value, obtain the negative pressure difference between the negative pressure value and the target negative pressure value, and adjust the operating parameters of the exhaust fan according to the negative pressure difference.

[0117] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: they can still modify or equivalently replace the technical solutions of the present invention, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A moisture absorption system for a scraper powder conveyor, characterized in that, Including: A moisture absorption module, which is an exhaust fan and is used to discharge water vapor in the scraper powder conveyor; A collection module, which is used to obtain real-time information data in the scraper powder conveyor, and the real-time information data includes the relative humidity value and temperature value in the scraper powder conveyor; A processing module, which is used to receive the real-time information data obtained by the collection module, determine the actual water content of the air in the scraper powder conveyor according to the relative humidity value and temperature value, and determine the operating parameters of the exhaust fan according to the actual water content, and set the working state instruction of the exhaust fan; A control module, which is used to receive the working state instruction of the exhaust fan set by the processing module and control the exhaust fan according to the working state instruction; The collection module includes a humidity sensor and a temperature sensor; In the processing module, a humidity matrix H0 and a water content matrix W0 are preset. For the humidity matrix H0, set H0(H1, H2, H3, H4), where H1 is the first preset humidity, H2 is the second preset humidity, H3 is the third preset humidity, H4 is the fourth preset humidity, and H1 < H2 < H3 < H4; For the water content matrix W0, set W0(W1, W2, W3, W4), where W1 is the first preset water content, W2 is the second preset water content, W3 is the third preset water content, W4 is the fourth preset water content, and W1 < W2 < W3 < W4; Obtain the relative humidity value h detected by the humidity sensor, and set the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity; When h < H1, set the first preset water content W1 as the water content of the air in the scraper powder conveyor; When H1 ≤ h < H2, set the second preset water content W2 as the water content of the air in the scraper powder conveyor; When H2 ≤ h < H3, set the third preset water content W3 as the water content of the air in the scraper powder conveyor; When H3 ≤ h < H4, set the fourth preset water content W4 as the water content of the air in the scraper powder conveyor; In the processing module, a temperature matrix T0 and a water content correction matrix d0 are preset. For the temperature matrix T0, set T0(T1, T2, T3, T4), where T1 is the first preset temperature, T2 is the second preset temperature, T3 is the third preset temperature, T4 is the fourth preset temperature, and T1 < T2 < T3 < T4; For the water content correction matrix d0, set d0(d1, d2, d3, d4), where d1 is the first preset water content correction coefficient, d2 is the second preset water content correction coefficient, d3 is the third preset water content correction coefficient, d4 is the fourth preset water content correction coefficient, and 0.6 < d1 < d2 < d3 < d4 < 1; After obtaining the relative humidity value h detected by the humidity sensor and setting the i-th preset water content Wi as the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity, at this time i = 1, 2, 3, 4; Obtain the temperature value T around the humidity sensor, and select the corresponding water content correction coefficient according to the relationship between the temperature value T and each preset temperature to correct the water content Wi of the air in the scraper powder conveyor; When T < T1, select the first preset water content correction coefficient d1 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction it is Wi * d1; When T1 ≤ T < T2, select the second preset water content correction coefficient d2 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction it is Wi * d2; When T2 ≤ T < T3, select the third preset water content correction coefficient d3 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction it is Wi * d3; When T3 ≤ T < T4, select the fourth preset water content correction coefficient d4 as the water content correction coefficient to correct the water content Wi of the air in the scraper powder conveyor, and after correction it is Wi * d4; The processing module determines the actual water content of the air in the scraper powder conveyor according to the relative humidity value and the temperature value, specifically: After setting the i-th preset water content Wi as the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity, at this time i = 1, 2, 3, 4; Select the j-th preset water content correction coefficient dj according to the relationship between the temperature value T and each preset temperature to correct the water content Wi of the air in the scraper powder conveyor, and after correction it is Wi * dj, at this time, j = 1, 2, 3, 4; Set the corrected Wi * dj as the actual water content of the air in the scraper powder conveyor; In the processing module, there is a matrix C0 of the actual water content of the air in the scraper powder conveyor, a matrix R0 of the rotational speed of the exhaust fan, and a matrix S0 of the running duration. For the actual water content matrix C0, set C0 (C1, C2, C3, C4), where C1 is the first preset actual water content, C2 is the second preset actual water content, C3 is the third preset actual water content, C4 is the fourth preset actual water content, and C1 < C2 < C3 < C4; For the rotational speed matrix R0, set R0 (R1, R2, R3, R4), where R1 is the first preset rotational speed, R2 is the second preset rotational speed, R3 is the third preset rotational speed, R4 is the fourth preset rotational speed, and R1 < R2 < R3 < R4; For the running duration matrix S0, set S0 (S1, S2, S3, S4), where S1 is the first preset running duration, S2 is the second preset running duration, S3 is the third preset running duration, S4 is the fourth preset running duration, and S1 < S2 < S3 < S4; Obtain the actual water content Wi * dj of the air in the scraper powder conveyor, and set the operating parameters of the exhaust fan according to the relationship between the actual water content Wi * dj and each preset actual water content; the operating parameters of the exhaust fan include the rotational speed and the running duration of the exhaust fan; When Wi*dj < C1, set the first preset rotational speed R1 as the rotational speed of the exhaust fan, and set the first preset operation duration S1 as the operation duration of the exhaust fan; When C1 ≤ Wi*dj < C2, set the second preset rotational speed R2 as the rotational speed of the exhaust fan, and set the second preset operation duration S2 as the operation duration of the exhaust fan; When C2 ≤ Wi*dj < C3, set the third preset rotational speed R3 as the rotational speed of the exhaust fan, and set the third preset operation duration S3 as the operation duration of the exhaust fan; When C3 ≤ Wi*dj < C4, set the fourth preset rotational speed R4 as the rotational speed of the exhaust fan, and set the fourth preset operation duration S4 as the operation duration of the exhaust fan.

2. The moisture absorption system of a scraper powder conveyor according to claim 1, characterized in that The acquisition module further includes a barometer for obtaining the negative pressure value inside the scraper powder conveyor; The processing module receives the negative pressure value inside the scraper powder conveyor obtained by the acquisition module, based on the negative pressure value, obtains the negative pressure difference between the negative pressure value and the target negative pressure value, and adjusts the operation parameters of the exhaust fan according to the negative pressure difference.

3. The moisture absorption system of a scraper powder conveyor according to claim 2, characterized in that The processing module pre-sets a negative pressure difference matrix P0 and an exhaust fan correction matrix f0. For the negative pressure difference matrix P0, set P0 (P1, P2, P3, P4), where P1 is the first preset negative pressure difference, P2 is the second preset negative pressure difference, P3 is the third preset negative pressure difference, P4 is the fourth preset negative pressure difference, and P1 < P2 < P3 < P4; For the exhaust fan correction matrix f0, set f0 (f1, f2, f3, f4), where f1 is the first preset exhaust fan correction coefficient, f2 is the second preset exhaust fan correction coefficient, f3 is the third preset exhaust fan correction coefficient, f4 is the fourth preset exhaust fan correction coefficient, and 0.6 < f1 < f2 < f3 < f4 < 1; After setting the k-th preset rotational speed Rk as the rotational speed of the exhaust fan and the k-th preset operation duration Sk as the operation duration of the exhaust fan according to the relationship between the actual moisture content Wi*dj and each preset actual moisture content, k = 1, 2, 3, 4; Obtain the negative pressure value inside the scraper powder conveyor, calculate the negative pressure difference P between the negative pressure value and the target negative pressure value, and select the corresponding correction coefficient according to the relationship between the negative pressure difference P and each preset negative pressure difference to correct the rotational speed Rk and the operation duration Sk of the exhaust fan; When P < P1, select the first preset exhaust fan correction coefficient f1 to correct the rotational speed and the operation duration of the exhaust fan. The corrected rotational speed of the exhaust fan is Rk*f1, and the corrected operation duration of the exhaust fan is Sk*f1; When P1 ≤ P < P2, select the second preset exhaust fan correction coefficient f2 to correct the rotational speed and the operation duration of the exhaust fan. The corrected rotational speed of the exhaust fan is Rk*f2, and the corrected operation duration of the exhaust fan is Sk*f2; When P2 ≤ P < P3, select the third preset exhaust fan correction coefficient f3 to correct the rotation speed and operation duration of the exhaust fan. The corrected rotation speed of the exhaust fan is Rk * f3, and the corrected operation duration of the exhaust fan is Sk * f3; When P3 ≤ P < P4, select the fourth preset exhaust fan correction coefficient f4 to correct the rotation speed and operation duration of the exhaust fan. The corrected rotation speed of the exhaust fan is Rk * f4, and the corrected operation duration of the exhaust fan is Sk * f4.

4. A method for absorbing moisture of a scraper powder conveyor, characterized in that, Including: Obtain the real-time information data in the scraper powder conveyor and transmit the obtained real-time information data to the processing module for processing. The real-time information data includes the relative humidity value and temperature value in the scraper powder conveyor; Determine the actual water content of the air in the scraper powder conveyor according to the relative humidity value and temperature value, and determine the operation parameters of the exhaust fan according to the actual water content. Set the working state instruction of the exhaust fan. The operation parameters of the exhaust fan include the rotation speed and operation duration of the exhaust fan; Control the exhaust fan according to the working state instruction set by the processing module to realize the moisture absorption of the scraper powder conveyor; Determine the actual water content of the air in the scraper powder conveyor according to the relative humidity value and temperature value, and determine the operation parameters of the exhaust fan, including: The processing module is preset with a humidity matrix H0 and a water content matrix W0. For the humidity matrix H0, set H0 (H1, H2, H3, H4), where H1 is the first preset humidity, H2 is the second preset humidity, H3 is the third preset humidity, H4 is the fourth preset humidity, and H1 < H2 < H3 < H4; For the water content matrix W0, set W0 (W1, W2, W3, W4), where W1 is the first preset water content, W2 is the second preset water content, W3 is the third preset water content, W4 is the fourth preset water content, and W1 < W2 < W3 < W4; Obtain the relative humidity value h, and set the water content of the air in the scraper powder conveyor according to the relationship between the relative humidity value h and each preset humidity; When h < H1, set the first preset water content W1 as the water content of the air in the scraper powder conveyor; When H1 ≤ h < H2, set the second preset water content W2 as the water content of the air in the scraper powder conveyor; When H2 ≤ h < H3, set the third preset water content W3 as the water content of the air in the scraper powder conveyor; When H3 ≤ h < H4, set the fourth preset water content W4 as the water content of the air in the scraper powder conveyor; The processing module is preset with a temperature matrix T0 and a water content correction matrix d0. For the temperature matrix T0, set T0 (T1, T2, T3, T4), where T1 is the first preset temperature, T2 is the second preset temperature, T3 is the third preset temperature, T4 is the fourth preset temperature, and T1 < T2 < T3 < T4; For the water content correction matrix d0, set d0(d1, d2, d3, d4), where d1 is the first preset water content correction coefficient, d2 is the second preset water content correction coefficient, d3 is the third preset water content correction coefficient, d4 is the fourth preset water content correction coefficient, and 0.6 < d1 < d2 < d3 < d4 < 1; After obtaining the relative humidity value h and setting the i-th preset water content Wi as the water content of the air in the scraper conveyor according to the relationship between the relative humidity value h and each preset humidity, at this time, i = 1, 2, 3, 4; Obtain the temperature value T, and select the corresponding water content correction coefficient according to the relationship between the temperature value T and each preset temperature to correct the water content Wi of the air in the scraper conveyor; When T < T1, select the first preset water content correction coefficient d1 as the water content correction coefficient to correct the water content Wi of the air in the scraper conveyor, and after correction, it is Wi * d1; When T1 ≤ T < T2, select the second preset water content correction coefficient d2 as the water content correction coefficient to correct the water content Wi of the air in the scraper conveyor, and after correction, it is Wi * d2; When T2 ≤ T < T3, select the third preset water content correction coefficient d3 as the water content correction coefficient to correct the water content Wi of the air in the scraper conveyor, and after correction, it is Wi * d3; When T3 ≤ T < T4, select the fourth preset water content correction coefficient d4 as the water content correction coefficient to correct the water content Wi of the air in the scraper conveyor, and after correction, it is Wi * d4; The processing module determines the actual water content of the air in the scraper conveyor according to the relative humidity value and the temperature value, specifically: After setting the i-th preset water content Wi as the water content of the air in the scraper conveyor according to the relationship between the relative humidity value h and each preset humidity, at this time, i = 1, 2, 3, 4; Select the j-th preset water content correction coefficient dj according to the relationship between the temperature value T and each preset temperature to correct the water content Wi of the air in the scraper conveyor, and after correction, it is Wi * dj. At this time, j = 1, 2, 3, 4; Set the corrected Wi * dj as the actual water content of the air in the scraper conveyor; In the processing module, there are preset the actual water content matrix C0 of the air in the scraper conveyor, the rotation speed matrix R0 of the exhaust fan, and the operation duration matrix S0. For the actual water content matrix C0, set C0(C1, C2, C3, C4), where C1 is the first preset actual water content, C2 is the second preset actual water content, C3 is the third preset actual water content, C4 is the fourth preset actual water content, and C1 < C2 < C3 < C4; For the rotation speed matrix R0, set R0(R1, R2, R3, R4), where R1 is the first preset rotation speed, R2 is the second preset rotation speed, R3 is the third preset rotation speed, R4 is the fourth preset rotation speed, and R1 < R2 < R3 < R4; For the running duration matrix S0, set S0(S1, S2, S3, S4), where S1 is the first preset running duration, S2 is the second preset running duration, S3 is the third preset running duration, S4 is the fourth preset running duration, and S1 < S2 < S3 < S4; Obtain the actual water content Wi*dj of the air in the scraper powder conveyor, and set the operating parameters of the exhaust fan according to the relationship between the actual water content Wi*dj and each preset actual water content; the operating parameters of the exhaust fan include the rotation speed and running duration of the exhaust fan; When Wi*dj < C1, set the first preset rotation speed R1 as the rotation speed of the exhaust fan, and set the first preset running duration S1 as the running duration of the exhaust fan; When C1 ≤ Wi*dj < C2, set the second preset rotation speed R2 as the rotation speed of the exhaust fan, and set the second preset running duration S2 as the running duration of the exhaust fan; When C2 ≤ Wi*dj < C3, set the third preset rotation speed R3 as the rotation speed of the exhaust fan, and set the third preset running duration S3 as the running duration of the exhaust fan; When C3 ≤ Wi*dj < C4, set the fourth preset rotation speed R4 as the rotation speed of the exhaust fan, and set the fourth preset running duration S4 as the running duration of the exhaust fan.

5. A moisture absorption method for a scraper powder conveyor according to claim 4, wherein The real-time information data further includes the negative pressure value in the scraper powder conveyor; After determining the operating parameters of the exhaust fan according to the actual water content, it further includes: Based on the negative pressure value, obtain the negative pressure difference between the negative pressure value and the target negative pressure value, and adjust the operating parameters of the exhaust fan according to the negative pressure difference.

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